1.先完成nacos-server项目，提供服务

2.pom.xml

<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.cxb</groupId><artifactId>nacos-server</artifactId><version>0.0.1-SNAPSHOT</version><name>nacos-server</name><!-- FIXME change it to the project's website --><url>http://www.example.com</url>
<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.0.5.RELEASE</version> <!-- lookup parent from repository -->
</parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><maven.compiler.source>1.8</maven.compiler.source><maven.compiler.target>1.8</maven.compiler.target></properties>
<dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Finchley.SR1</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-alibaba-dependencies</artifactId><version>2.0.0.RELEASE</version><type>pom</type><scope>import</scope></dependency></dependencies>
</dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version> 1.16.22</version><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies><build></build>
</project>

3.application.properties

server.port=8070
spring.application.name=cloud-nacos-serverspring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

4.CloudNacosServerApplication

package com.cxb.nacos_server;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;/*** Hello world!**/
@EnableDiscoveryClient
@SpringBootApplication
public class CloudNacosServerApplication 
{public static void main( String[] args ){SpringApplication.run(CloudNacosServerApplication.class, args);}@RestControllerclass EchoController {@RequestMapping(value = "/echo/{string}", method = RequestMethod.GET)public String echo(@PathVariable String string) {return "hello Nacos Discovery " + string;}@RequestMapping(value = "/divide", method = RequestMethod.GET)public String divide(@RequestParam Integer a, @RequestParam Integer b) {return String.valueOf(a / b);}}
}

5.启动服务

******************gateway******************

1.pom.xml

<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><groupId>com.cxb</groupId><artifactId>nacos-gataway</artifactId><version>0.0.1-SNAPSHOT</version><name>nacos-gataway</name><!-- FIXME change it to the project's website --><url>http://www.example.com</url><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.0.5.RELEASE</version> <!-- lookup parent from repository --></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><maven.compiler.source>1.8</maven.compiler.source><maven.compiler.target>1.8</maven.compiler.target></properties><dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>Finchley.SR1</version><type>pom</type><scope>import</scope></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-alibaba-dependencies</artifactId><version>2.0.0.RELEASE</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-actuator</artifactId></dependency><dependency><groupId>com.alibaba.cloud</groupId><artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-gateway</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><version> 1.16.22</version><optional>true</optional></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies><build></build>
</project>

2.application.properties

server.port=18085
#\u914D\u7F6E Nacos Server \u5730\u5740
spring.application.name=nacos-gateway
spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848
management.endpoints.web.exposure.include=*# \u914D\u7F6E\u6587\u4EF6\u4E2D\u914D\u7F6E Spring Cloud Gateway \u8DEF\u7531
spring.cloud.gateway.routes[0].id=nacos-route
#\u683C\u5F0F\u4E3A\uFF1Alb://\u5E94\u7528\u6CE8\u518C\u670D\u52A1\u540D
spring.cloud.gateway.routes[0].uri=lb://cloud-nacos-server
spring.cloud.gateway.routes[0].predicates[0].name=Path
spring.cloud.gateway.routes[0].predicates[0].args[pattern]=/nacos/**
spring.cloud.gateway.routes[0].filters[0]=StripPrefix=1

3.GatawayApplication

package com.cxb.nacos_gataway;import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;/*** Hello world!**/
@EnableDiscoveryClient
@SpringBootApplication
public class GatawayApplication 
{public static void main( String[] args ){SpringApplication.run(GatawayApplication.class, args);}
}

4.启动项目测试

访问http://localhost:8070/echo/456 调用服务本身的接口

通过gateway配置的访问：http://localhost:18085/nacos/echo/8999

http://localhost:18085/nacos/divide?a=10&b=2

这里实现找了很多demo参考，要么pom文件的依赖各种报错，要么properties里面的配置各种不能用，虽说文件少，特么花了我大半天的时间，心塞啊（桑心0.0）